Snipcart on page item increase button

Design help Custom code
1

Hi all,

I’m struggling to integrate Snipcart properly and get the on-page controls to work.
Does anyone have experience with that ? I can’t seem to get the on page item increase / item decrease and amount input functions to work.

See read-only below.

Thanks in advance

Here is my site Read-Only: https://preview.webflow.com/preview/novus-ventus-snipcart?utm_medium=preview_link&utm_source=designer&utm_content=novus-ventus-snipcart&preview=c7a2c04cf749e385abb2a5d0849ff896&pageId=607c5adc0b3e0a21f813f97c&itemId=609ff520a0d8a956df2e29e0&mode=preview